Curiosity doesn’t kill the fox. It empowers it!
If you have learned about gas price and gas limit, and wonder how to adjust them on MetaMask, here’s how:
On the “Send Eth” or “Send Token” screen, click Fastest, Fast, or Slow next to Transaction fee:
To customize the transaction fee, select Advanced Options:
You can manually enter Gas Price (GWEI) and Gas Limit. You can also click on the Live Gas Predictions graph.